Nexen BD 933702 - Manual (Page 8)

8 FORM NO. L-21098-C-0609
(Item 30) must be flush with bottom of Main Frame (Item 1).
12. Press the old Sleeve Bearings (Item 15) out of the Shoes
(Item 3) (See Figure 10).
NOTE: Sleeve Bearings (Item 15) must be pressed from both
sides to be flush with the recess in the Brake Arm.
13. Press new Sleeve Bearings (Item 15) into the Brake Arm (Item
2) (See Figure 10).
14. Slide the Brake Arms (Item 2) back into the Main Frame (Item
1) (See Figure 10).
NOTE: There is one threaded hole on each side of the front
of the Main Frame (Item 1). The BD Arms (Item 2) must be
inserted into the Main Frame from the opposite end. (See
Figure 10)
15. Install the Pivot Pins (Item 7) (See Figure 10).
16. Install the Pivot Pin Retaining Plate (Item 6) (See
Figure 10).
17. Install the four Cap Screws (Item 24) to secure the Pivot Pin
Retaining Plate (Item 6) (See Figure 10).
18. Tighten Cap Screws (Item 24) to 40-50 in-lb [4.5-5.6 Nm].
NOTE: Two Belleville Disc Springs (Item 29) are compressed
between Brake Arm (Item 2) and Shoe (Item 3). When Shoe
is removed, Belleville Disc Springs will fall free from Brake
Arms.
19. Slide the Friction Facings (Item 4) and Shoes (Item 3) over
the Belleville Disc Springs (Item 29) and onto the Brake Arms
(Item 2); then, install the Detent Pins (Item 16) (See Figure
10).
20. Install the Spring Clips (Item 5) and Extension Springs (Item
17) onto the Brake Arms (Item 2) (See Figure 10).
21. Screw the Actuator back onto the Brake Arm (Item 2) as far
as possible (See Figure 10).
22. Loosely attach the Spanner Nut (Item 12).
23. Perform Friction Facing adjustment (See frICTION fACINg
CLEArANCE ADJUSTMENT).
HIGH PV SLEEVE BEARINGS
NOTE: This BD Caliper Brake is spring engaged and
hydraulically disengaged. To release the spring pressure,
remove the Vent, then lubricate and insert a Class 8.8 M10 x
1.5 x 5.5'' Threaded Rod into the back of the Actuator; then,
using a Flat Washer and Nut, tighten the Nut to release the
spring pressure (See Figure 4). A Manual Release Kit (Product
No. 933710) containing these items is available from Nexen.
1. Loosen the Spanner Nut (Item 12) (See Figure 10).
2. Remove the Actuator from the Brake Arm (Item 2) (See Figure
10).
3. Remove the Extension Springs (Item 17) and Spring Clips
(Item 5) from the Brake Arms (Item 2) (See Figure 10).
4. Remove the Detent Pins (Item 16) from the Brake Arms (Item
2), Friction Facings (Item 4), Shoes (Item 3), and Belleville Disc
Springs (Item 29) (See Figure 10).
NOTE: Two Belleville Disc Springs (Item 29) are compressed
between the Brake Arm (Item 2) and the Shoe (Item 3). When
the Shoe is removed, the Belleville Disc Springs will fall free
from the Brake Arms.
5. Slide the Friction Facings (Item 4) and Shoes (Item 3) off of
the Brake Arms (Item 2) (See Figure 10).
6. Remove the four Cap Screws (Item 24) securing the Pivot Pin
Retaining Plate (Item 6) (See Figure 10).
7. Remove the Pivot Pin Retaining Plate (Item 6) (See Figure
10).
8. Press the Pivot Pins (Item 7) out of the BD Caliper Brake (See
Figure 10).
9. Slide the Brake Arms (Item 2) out of the Main Frame (Item 1)
(See Figure 10).
10. Press the old Sleeve Bearings (Items 14 and 30) out of the
Main Frame (Item 1) (See Figure 10).
11. Press new Sleeve Bearings (Items 14 and 30) into the Main
Frame (Item 1) (See Figure 10).
NOTE: Tops of Sleeve Bearings (Item 14) must be flush with
top of Main Frame (Item 1) and bottoms of Sleeve Bearings
fIgUrE 10
11 18
12
2
2
9
8
5
17
29
15
29
24
6
7
14
1
16
30
4
3
18
50
51